Which of the following is a name of plotter as well as a printer?
Answer: C
Drum is the name of a plotter as well as a printer. Drum printers have a predefined set of characters and print one line at a time. Drum plotters is an ideal device for architects and others who need to generate high-precision hard copy graphics output of widely varying sizes.
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The unattended interactive information systems such as automatic teller machine or ATM is called as _________
Answer: A
Correct answer: Kiosks
A kiosk is an unattended interactive terminal placed in a public space - a cash machine, a ticket machine, an information point, a self-service checkout.
Its design follows from being unattended: a simplified interface for users with no training, hardened input devices such as touch screens and sealed keypads, and physical security for whatever it dispenses. The other options are not words. The term is borrowed from the small structures such machines were first placed in.
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Which of the following is not a point-and-draw device?
Answer: A
Correct answer: Keypad
A keypad has discrete keys and enters characters or digits; it cannot indicate an arbitrary position on the screen or trace a path, which is what point-and-draw means.
The other three all can. A mouse and a trackball report continuous movement, and a touch screen reports the position touched directly. Arrow keys move a cursor in fixed steps, which is why they serve as a poor substitute for a pointing device rather than as one.
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The term used to define all input and output devices in a computer system is ____
Answer: D
Correct answer: Hardware
Hardware is the collective term for the physical parts of a computer, which includes every input and output device. Software is the set of programs, and a monitor is one output device rather than the class.
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What does GUI stand for?
Answer: D
Correct answer: Graphical User Interface
A graphical user interface presents the system as windows, icons, menus and a pointer, so that operations are performed by direct manipulation rather than by typing commands.
The contrast is with the command line interface, which requires the user to know and type the command names. The graphical form is what made computers usable without training, and the pointing devices in this topic - mouse, trackball, touch screen - exist to serve it.
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The quality and performance of a monitor depends on
Answer: C
Correct answer: Video Card, Resolution, and Refresh Rate
These three between them determine what the user sees. The video card generates the signal and bounds what the monitor can be driven to display; resolution sets the number of pixels and hence the detail; refresh rate sets how often the image is redrawn and therefore the smoothness of motion.
Size affects how large the image appears but not its quality - a large screen at low resolution simply shows the same detail bigger, with coarser pixels, which is why the options including size are the weaker set.
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The most widely used input device is the ____
Answer: B
Correct answer: Keyboard
The keyboard is the input device present on virtually every computer and used for nearly all text and command entry. A mouse is almost as common but points rather than enters data; a modem is a communication device and a monitor is an output device.
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These devices provide a means of communication between a computer and outer world.
Answer: A
Correct answer: I/O
Input and output devices are the interface between the machine and everything outside it - users, other machines, and the physical world.
Without them a computer could compute but neither receive a problem nor report an answer. They are also called peripherals, because they surround the processor and memory rather than forming part of them. Storage devices are a special case, communicating with the machine's own long-term memory rather than with the world.
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A standard keyboard for desktop computer contains from
Answer: A
Correct answer: 101 to 105 keys
The 101-key layout became the standard with the IBM Enhanced Keyboard, and the 104- and 105-key variants added the two Windows keys and a menu key - 104 for the United States layout and 105 where an extra key is needed for the local alphabet.
The letters and numbers are only part of it: the count includes function keys, the numeric keypad, cursor and editing keys and the modifiers, which is why the third option is far too narrow.
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Which of the following is not a part of a digitizer?
Answer: C
Correct answer: Stick
A digitizer has three parts: the tablet, which is the flat sensing surface, and one of two pointing devices used on it - a stylus resembling a pen, or a cursor, a puck with cross-hairs for tracing precisely along a line.
"Stick" names no component of such a device; a joystick is a quite different instrument reporting deflection rather than absolute position. The digitizer's distinguishing property is that it reports where on the tablet the pointer is, which is what makes tracing a drawing possible.
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